I was really sick for a few days and had a high fever. I don't know exactly how high, I never had anyway to check, but I knew it was one of the worst fevers a have had. As bad as I felt I was not really moving eating or anything, but after a few days when the fever had gone down and I was feeling a little better I went to get some food with a friend, I ordered my usual, but when I went to eat it it tasted like I was chewing on the dirty burnt screen on a charcoal grill, my friend tried it and said it was the same as it always was. This took 3 days to go away but only got it when I would eat certain things . What causes this to happen